Combined siphon and circulator for steam boilers



s sheets-sheet '1 F. LE BLANC Filed Aug. 15, 1941 COMBINED SIPHON AND CIRCULATOR FOR STEAM BOILERS Tran/riz@ ,Bama

. Aug. 17, 1943.

Aug. 17, 1943. F. LE BLANC COMBINED sIPHoN AND CIRCULATOR FOR STEAM BOILERS Filed Aug. 13, 1941 3 Sheets-Sheet 2 @conoce oocosooo n, oooososua4 ooooooovo.

Poesoooo oaoooeooco Freni Ze lwc' Aug. 17, 1943. F. LE BLANC 2,326,869

COMBINED SIPHON AND CIRCULATOR FOR STEAM BOILERS Filed Aug. 13, 1941 3 Sheets-Sheet 3 to incomplete circulatio the en'tiresiphon.v v Y l ...Withv these 'and o her objects rangement.. offV partsi- 'whicnwiu -bf'-hereiaftr more-fully descrbediandlclairned 'I' For a' complete un'de'rstandingof niyiinven'tion, reference is to be had to .the followingdescr-ip@v tion and accompanying drawings, in'.swhichs1;V '.'JFigurei 11 isi a. topplannviewaof:mycombined Y siphon andfzcirculaton adaptedforusefin? asteam 'locomotive boiler. .i' f Y l'. y .v y mi, 4. 'FigureZi'sa sectionalviewtaken on'a line 2-'-2 A Figure 31 isa vertical sectionaliview taken on` I .the line 3*-*3of liigur'el f vFigure 4jis Ka fragmentary verticalV sectional view-taken onl ai line Ig-IIofjligure 2-..

; Figure 5 is.. a fragmentary enlarged'. sectional view illustrating the 'connection' for the circulatcr with the Siphon. and taken on .a linegv-f of Figure 2, and I y.liigure 6 is a transverse sectionalview-throligh l the elongated deector in the` Siphon'. Y'

y Referring irrvdetail tothe drawings, the nu# Vmeral 5 designates a Siphon-generallyespecially y adapted forv providingfecientcirculation'of water througha reboxof 4a. steam locomotive boiler and ft'oldistribute 'waterY overV the Vcrownv n sheet Vvof .the rebox'ofthe .boiler by a therrno' -V VSiphon action( 'Two or moreof the'siphonsare' employed ina boiler and extend fromV thethroat f sheet 6 of theboiler tothe Acrownv sheet 'Ijwithin thereboinj The crown sheet .is'provided withv a slotf8 through 'whichrthe waterv from the Siphon isdischarged over said y crown sheet.

l The. siphonV includes 'a p o'rtion 9of a narrow t 1 elongatedftfvormation' andaf Atulciularportion@ I0 f yconnected to the Iiange 6'1of thethroat sheet? byf Welding orvsome other suitablelineanis. f'lfhe yportion!! consists of1substantallyspaced par#k Yallelsides I0' connected-.jin 'spaced vrelation by .g

hollow stay bolts I I. The'portionfalso-includes Y. end walls I2 and I2". Theiwalls'of theportion 'wall Algzgisjfof .a greater height thang the .end-wall :1.25 andthe side wellssheped to matchthedif.-

through ,the .sliphpnfin thefdirection.

Ybecome more :apparentes-fthe; description'apro. 'f .bythe arrowa. 'first entering the tubularfijrtca u 'ceedsV-theinvention' Yconsists fincert'ai Y "e'l V:features of-fcon'struction; combination Van Y 'rl 0-fr9mlthe fbolei- Eby. way..of..anopenling piro- .15 .vided. in.; the throat '.sheet.. 'This water'flapassesl iupwardlylithrough the lpo'rton fand.: discharges over'the crown sheet. )The tendencyof,-the water virtu.lawine ,through .they .Siphon .after '1emf-r1g1 the tubular portion YIl) is to rise*morelrapidlythrough there'is alwaysV tion'of water. ATo prei/'entithis faulty circul'atien---"'`v of watergand to 'assure' ai substantially Yiu'iiforrn circulation of Water throughout the portion Il-,an n elongated deector plate I3 is .provided which'isv soflocate'd in the lower partffthe' `portionrwht-:re the side Yand eridwalls mergeuintov the tubular:

portion I0 forrning af'passagei along the boty Atom'of the ircirijiin 9 ofthe siph0n...-.The *lowerf, erid; ofthe 'deector iSsparced' from: fthewal1sof f thetubularportionUrso as-to divide the income"` f inglwater causinga,portionthereof toffliow along` the passage.,IIIfrand` then upwardly inthe f rearrpartof the :portion-awhilethe other'por Y l .1 tiontof waterfio'ws over Vthe--lcweryend of the -40 deflect'or and thence upwardly through the for? l. Ward Vpartof the portion-" 3 .ofthe siphoriand Y j:

:thereby assrel ancomplete "circulationofffwater "Qthroughout the' entirearea'.; of the,portieri?2.9?ofVV V45 walls crackne'f'orjdeterioating- 'l yThe deflector I-3,is'transversle1y vcurvedandha'rs. K'

' formed y. thereonllpai'rs of spaced aperturd ears 114 through which certain ofthe `lo'werrn'ost"staybolts] II extend for supporting the deector 50`- place .within the Siphon and as showfnin' .lgureGQr l Outturned flangesll are formed;integrallywith;V

the sidejancl end wallsvofftheportion 'Sjatithe upperedjges jofvsaid walls and are vbutt weldedA t vonto thecrown sheet and also' secured thereto by` f v 55l stay bolts' I6ernployed in the supportiofthe crown sheet. The'anges-of the end walls where meeting are Welded together',y as shown atl l1.'

wardly/o'fthe front'vetic'altiibeg 2?-3. i 'Y l 'The liront 'iverticalftubes Rvare positioned-in -th'elside sheets at fthe Vunction thereof y with 'the thmatsheet-B. fr v il* Y Y The-throat'sheetislprevidedwitha clean-out` Y K, plug-1341'andi'theldoor sheet -iis valso provided-with -35 :a clean-outv plug- 35 ldlincme'nt 1 with theltnbu- `la`rpo1'tion-l Ilofthels'iphonf' Y A water c'irculator is provided for the side sheets ljand door sheet A|9ofthe boiler, the

circulators at thetwosdes 4of the boiler being 5 .Y of identical constructiomrand y.comprise a verti cal -tube 20 positioned at the junction of the side sheet with the door sheet and from which a horizontal tube 2 I` extends forwardly the 'to a pairv of intermediate verticaltubes V22 and a crown sheet of the boiler and. a circulation device positioned Within the side sheets and connected to the siphon device;l said siphon and circulation devices being adapted to receive and convey fluid from the throat sheet, the dcorsheet and the side sheets tothe crown sheet.

2. A combined Siphon` and Water circulation system-for steam boilers of a type including a o crown sheet, .a throatsheetfafmr sheet and sheet. The tubeflis -connected atfitsillbend 10 front vertical tube 23', all connected by vertically` spacedhorizontal tubes 24. Each of the vertical Y tubes are perforated'as shovim-ati 1.amd-Mae Mii-j y zontal tubes areoffset as shown in Figure '2. f5

A tube 26 also extends laterallyv upwardly-1nd rearwardly from the front vertical tube 23 tol theu f l f f`fromfthefthmatzshcettothecrownsheet. A

3.1-A combined siphon and waterncirculation front end Wall I2. Y Y

A combustion chamberV circulation systernfisalso provided for the combustion chmber C, 20'

and compri-sesfa-pan` 2 1 having @Heiliges 2l around its #edges )which are Zbutt welded to the'eges lef 'an opening V2B in the'crown sheet'l fat lthe t'ep lof f the @combustion chamberand also 'supported by long staybolts 430.1' circuatingtubes 3l lead 25VV 'from the iront' vertical Vtribe 1!3 to .thefsides of fthe -pan andrcirculatin'g tubes?? ilse 7Aleed from `the sides of the pockets 33 1l'inmxelori the 'inner surfaces Aof fthe r corriianzls'tion chsrnber 'for--V v Havinglthus ldescribed -iny vice having communication .with the 4throat sheet and crown sheet of the boilerl `and a circulation K Idevice positioned within the side sheets and consip'hon device, said lcirculationV deu"vice-beingadapted to receive and convey fluid from the door sheet' and side sheets to the siphon and salids'iinhon being adapted to convey fluid systein' Iorsteam boilers of a; type including a crown :fsheetm thmatsheet affdoorisheetyand iside sheets, asiphon 1de.-

teommusxication with the sheet mid? crown :sheet ci :the initierV :and a -cimulation dnviiositioned :insthezslrle @Sheets :and conf nested tlie siphon device, Mid-circulation 'de- Y vicefcomxmsing interconnected 'ivcrticalrand hori- 'sumar penfmted-tnbesrnciuem-a tube fai the y unctiun ,fof the fdoorsheet with the isideefsheets,

. 4. A renuncien-erstem :fer stem muere yi-*fsf` i.

i. :A -eembm'ed siphon and water 'feiruiatitn y-40 including combustion chamber having :a

erom-@sheet and' side sie wwf @rated tubes Ythe side-sheets, a ,siphon device :naving'commun cation with the.l crownheetfitnbes vconnecting 1 theiperforated'tubcsmththestphonrdevicefpcb :in ithexwa'lk ofithe m'rivm sheetsandfide 

